Results 151 to 160 of about 2,430,073 (342)

On vertical interpolation and truncation in connexion with use of sigma system models [PDF]

, 1976
Hilding Sundqvist
openalex   +1 more source

COMPLEXIFIED SIGMA-MODEL AND DUALITY [PDF]

Modern Physics Letters A, 2011
We show that the equations of motion associated with a complexified sigma-model action do not admit manifest dual SO (n, n) symmetry. In the process we discover new type of numbers which we called "complexoids" in order to emphasize their close relation with both complex numbers and matroids. It turns out that the complexoids allow one to consider the
openaire   +3 more sources

Finite sigma models and exact string solutions with Minkowski signature metric

, 1992
We consider $2d$ sigma models with a $D=2+N$ - dimensional Minkowski signature target space metric having a covariantly constant null Killing vector. These models are UV finite. The $2+N$-dimensional target space metric can be explicitly determined for a
A. A. Tseytlin, A. A. Tseytlin, A. A. Tseytlin, A. A. Tseytlin, A. A. Tseytlin, A. A. Tseytlin, A. A. Tseytlin, A. A. Tseytlin, A. A. Tseytlin, A. A. Tseytlin, A. A. Tseytlin, A. A. Tseytlin, A. Cooper, A. H. Chamseddine, A. H. Chamseddine, A. Morozov, A. Sen, A. Strominger, B. de Wit, B. Zumino, C. Callan, C. Callan, C. Duval, C. G. Callan, C. G. Callan, C. Teitelboim, D. Amati, D. Amati, D. Friedan, D. Friedan, D. Garfinkle, E. Witten, E. Witten, E. Witten, F. David, G. Curci, G. Horowitz, G. Horowitz, G. Horowitz, G. Mandal, G. Veneziano, H. W. Brinkmann, I. Antoniadis, I. Bars, I. Bars, I. Bars, I. Bars, I. Jack, J. Distler, J. Gracey, J. H. Horne, J. Polchinski, J. Russo, J. Russo, K. A. Meissner, K. A. Meissner, L. Alvarez-Gaumé, L. Alvarez-Gaumé, L. Alvarez-Gaumé, M. C. Prati, M. Crescimanno, M. D. Freeman, M. Gasperini, M. Mueller, M. T. Grisaru, M. T. Grisaru, M. T. Grisaru, P. Di Vecchia, P. E. Haagensen, P. Ginsparg, Q-Han Park, R. Dijkgraaf, R. E. Rudd, R. Guven, R. Jackiw, R. Myers, S. B. Giddings, S. Cecotti, S. Das, S. Elitzur, S. F. Hassan, S. P. de Alwis, S. R. Das, T. Banks, T. Banks, T. T. Burwick, V. Novikov, V. Novikov   +87 more
core   +1 more source

Peripheral blood leukocyte signatures as biomarkers in relapsed ovarian cancer patients receiving combined anti‐CD73/anti‐PD‐L1 immunotherapy in arm A of the NSGO‐OV‐UMB1/ENGOT‐OV30 trial

Molecular Oncology, EarlyView.
Using mass cytometry, we analyzed serial blood samples from patients with relapsed epithelial ovarian cancer (EOC) treated with oleclumab–durvalumab combination immunotherapy in the NSGO‐OV‐UMB1/ENGOT‐OV30 trial. Our analysis identified potential predictive, monitoring, and response biomarkers detectable through liquid biopsy. These findings facilitate
Luka Tandaric, Annika Auranen, Katrin Kleinmanns, René DePont Christensen, Liv Cecilie Vestrheim Thomsen, Cara Ellen Wogsland, Emmet McCormack, Johanna Mäenpää, Kristine Madsen, Karen Stampe Petersson, Mansoor Raza Mirza, Line Bjørge   +11 more
wiley   +1 more source

Statistical process control to monitor use of a web‐based autoplanning tool

Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Purpose To investigate the use of statistical process control (SPC) for quality assurance of an integrated web‐based autoplanning tool, Radiation Planning Assistant (RPA). Methods Automatically generated plans were downloaded and imported into two treatment planning systems (TPSs), RayStation and Eclipse, in which they were recalculated using ...
Hunter Mehrens, Raphael Douglas, Mary Gronberg, Kelly Nealon, Joy Zhang, Laurence Court   +5 more
wiley   +1 more source

Instantons in the non-linear sigma model [PDF]

arXiv, 2005
This is a review to classify all finite energy solutios of the two dimensional non-linear sigma model. These solutions could be important in understanding the vacuum structure of the non-linear sigma model.
arxiv  

Evidence for a new $\Sigma^{*}$ resonance with $J^P=1/2^-$ in the old data of $K^-p\to\Lambda\pi^+\pi^-$ reaction

, 2009
Distinctive patterns are predicted by quenched quark models and unquenched quark models for the lowest SU(3) baryon nonet with spin parity $J^P=1/2^-$. While the quenched quark models predict the lowest $1/2^-$ $\Sigma^*$ resonance to be above 1600 MeV ...
A. Zhang, B. S. Zou, Jia-Jun Wu, S. Dulat   +3 more
core   +1 more source

Peripheral blood proteome biomarkers distinguish immunosuppressive features of cancer progression

Molecular Oncology, EarlyView.
Immune status significantly influences cancer progression. This study used plasma proteomics to analyze benign 67NR and malignant 4T1 breast tumor models at early and late tumor stages. Immune‐related proteins–osteopontin (Spp1), lactotransferrin (Ltf), calreticulin (Calr) and peroxiredoxin 2 (Prdx2)–were associated with systemic myeloid‐derived ...
Yeon Ji Park, Jae Won Oh, Hyewon Chung, Jung Won Kwon, Yi Rang Na, Kwang Pyo Kim, Seung Hyeok Seok   +6 more
wiley   +1 more source

Validation of pencil beam scanning proton therapy with multi‐leaf collimator calculated by a commercial Monte Carlo dose engine

Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract This study aimed to evaluate the clinical beam commissioning results and lateral penumbra characteristics of our new pencil beam scanning (PBS) proton therapy using a multi‐leaf collimator (MLC) calculated by use of a commercial Monte Carlo dose engine.
Yuki Tominaga, Yusuke Sakurai, Junya Miyata, Shuichi Harada, Takashi Akagi, Masataka Oita   +5 more
wiley   +1 more source

Integrable sigma models and 2-loop RG flow

Journal of High Energy Physics, 2019
Following arXiv:1907.04737 , we continue our investigation of the relation between the renormalizability (with finitely many couplings) and integrability in 2d σ- models.
Ben Hoare, Nat Levine, Arkady A. Tseytlin   +2 more
doaj   +1 more source